Heating furnace



HEATING FURNACE c. F. ERB 2,011,620

Filed Nov. 9, 1951 f 2 Sheets-Sheet ,l

INVENTOR BY E ATTORNEY Aug. 20, 1935. c. F. ERB 2,011,620

HEATING FURNACEv Filed Nov. 9, 1951( y ashe'ets-sheet 2 'ze 2s '2 24 IHHHIHI y 2o v 5 'l "l: l 2|V CgrenceEErb ATTORNEY v PatentedAug 20, i935 HEATING FURNACE 2 Claims.

This invention relates to furnaces.

The principal object of this invention is to provide a furnace for the heating of homes, stores, factories, and the like.

Another object of the invention is to provide a furnace having a water jacketed re pot.

A further object is to provide a furnace having two alternating fuel feed rams.

A still further object is to provide means for automatically actuating said alternating fuel feed rams.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the lcombination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein:-

Figure 1 is a side elevation of the device with parts broken away.

Figure 2 is across section of Figure l.

Figure 3 is a detail view of Figure l showing a longitudinal section through the fuel feed rams and a portion of the fire pot.

By referring to the drawings it will be seen that there is provided a boiler I. This boiler I is provided with a suitable cover 2 and a smoke outlet 3, The boiler I is so constructed that suitable outlets 3i! to radiators, for heating rooms at a distance from the furnace, may be attached. It is also evident that if desired, a jacket may be placed about the boiler in order to set up a warm air circulation.

f By referring to Figure 1 it will be seen that a re door opening 4 is positioned in the boiler I leading to an interior portion 5 which contains a water jacketed lire pot E. This water jacketed fire pot 5 has water pipes l communicating between the boiler I and the water jacketed fire pot 6 at points, 8 and 9. It will also be seen by referring to Figure l that the boiler I is provided with suittaken on line 2-2 able ilues l@ which are positioned above the interior portion 5. In operating the device coal or other suitable fuel is put in a fuel hopper I I where it feeds down to a feed mouth I2 leading to' an opening into a fuel passageway in which is positioned a horizontal hollow ram I3. This hollow ram I3 is actuated by means of a pair of arms Id which is rigidly secured to a rocker shaft I5. These arms I4 are pivoted to a pair of horizontal links I6. The arms I4 are actuated by means of the rocker shaft I5. This rocker shaft I5 carries a keyed rocker arm 3l to which is pivoted a connecting rod I'I which is moved by means of a crank mounted on a shaft I8. This shaft I8 is actuated by means of any suitable power attached to a shaft I9. It will also be seen by referring to Figure 3 that there is provided a vertical hollow ram 2B which is actuated by means of arms 2! which are keyed to the rocker shaft I5. These arms ZI are caused to move due to the connecting rod il which moves the keyed rocker arm 3l and rocks the rocker shaft i5. It will be seen that as the hollow ram E3 is caused to travel outwardly in the fuel passageway, the hollow ram 2O is caused to travel upwardly in a vertical passageway. The rain I3 forces the fuel inwardly into the chamber 22 and the ram 20 forces the fuel upwardly therethrough and into the water jacketed fire pot 6 up through a central opening between support bars 23 which are positioned Within an air chamber 24 which is provided with an air inlet 26.

By referring to Figure 1 it will be seen that there is provi-ded a pipe 21 leading to any convenient blower such as a fan. When this blower is in operation a hinged damper 28 is caused to swing back against a stop 29 which is provided with a plurality of openings, thus closing the plurality of openings in the stop 29 and closing the damper 28.

As the fuel is forced up into the water jacketed fire pot 6 the cinders or non-combustible material is forced over the upper edge of the water jacketed re pot 5 and falls down into an ash pit beneath the furnace. This ash pit is not shown in the drawings.

What I claim iszl. In an underfeed furnace comprising a fire pot, a lower central opening in saidiire pot, and a fuel hopper positioned in close proximity to said ilre pot, the combination of a fuel passage having a horizontal portion underneath said fuel hopper and a vertical portion opening upwardly into the re pct establishing communication between said hopper and said fire pot, a pair of reciprocating rams, a rock shaft, rocker arms rigidly mounted on said shaft, means connecting said rocker arms with said rams for actuating the` same, one of said reciprocating rams moving in the horizontal portion of said fuel passage and the other reciprocating ram moving in the vertical portion of` the fuel passage underneath said fire pot for the purpose of forcing fuel upwardly into said re pot, and means for actuating said rock shaft.

, pot, a lower central opening in said re pot, and

a fuelhopper "positioned in closeproximity to saidre pot`the combination of a fuel; passage yhaving ay horizontal portion underneath said Vfuel hopper and a vertical portion opening upwardly a into thevfire pot ,establishing communication ben tween said hopper and saidre pot, a, pairof reciprocating rams, one of said reciprocating rams moving in the horizontal portion of said fuel pasl2. Inr an underfeed furnace, comprisinga rey sage and the other reciprocating ram moving in .the Vertical portion ofthe fuel passage underneathsaid fire pot for the purpose yof forcing fuel upwardly into said re pot, a single rocker shaft, rocker arms rigidly mounted thereon, means connecting the v rocker arms rWithy said rams for Aactuating the same and` means for actuating the rocker shaft. 1 n CLARENCE F. ERB. 

